Surface configuration of a rear bumper for a vehicle



FIG. 1 is a right perspective view of a surface configuration of a rear bumper for a vehicle according to my novel design;

FIG. 2 is a front view of the surface configuration of a rear bumper for a vehicle according to my novel design; and,

FIG. 3 is a right side view of the surface configuration of a rear bumper for a vehicle according to my novel design.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a surface configuration of a rear bumper for a vehicle, as shown and described. 